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CT scan of sinuses

X Lu, A J Forte, R Sawh-Martinez, R Wu, R Cabrejo, D M Steinbacher, M Alperovich, N Alonso, J A Persing
Bony malformations of the orbit and alterations to the soft tissue in Apert syndrome contribute to ophthalmic dysfunction. Recognised structural malformation of the sphenoid and ethmoid sinuses, together with corresponding deformities in the anterior and middle cranial base, are characteristic. Our aim was to explore the underlying structural components of disfigurement and the consequent development of the orbit in patients with Apert syndrome over time by studying 18 preoperative computed tomographic (CT) scans of affected patients and 36 scans from controls...
October 15, 2018: British Journal of Oral & Maxillofacial Surgery
Shoaib Ugradar, Robert Goldberg, Daniel Rootman
PURPOSE: To characterise variations in the location of the optic canal and its entry into the orbit in relation to the sphenoid sinus. METHODS: In this observational study, patients with high-resolution computed tomography (CT) scans seen by 2 specialists (RG and DR) over a period of 12 years were reviewed for study entry. The primary outcome measure was characterisation of the optic canal route in relation to the sphenoid sinus and the location of its opening within the orbit...
October 18, 2018: Orbit
Danielle Ayumi Nishimura, Eduardo Massaharu Aoki, Reinaldo Abdala Júnior, Emiko Saito Arita, Otavio Henrique Pinhata-Baptista, Ricardo Yudi Tateno, Luciana Correa, Arthur Rodriguez Gonzalez Cortes
PURPOSE: Pixel values from cone-beam computed tomography (CBCT) are proportional to bone density. This study aimed to correlate and compare pixel values of healed maxillary sinus grafts and adjacent native bone (NB). MATERIAL AND METHODS: This study was conducted on CBCT scan patients referred for maxillary sinus floor augmentation with biphasic calcium phosphate (n = 31). Graft height and width measurements were performed. In addition, mean pixel values were calculated in 3 different regions: NB, sinus graft close to NB (CNB), and sinus graft far from NB (FNB)...
October 12, 2018: Implant Dentistry
Clifford L Jeng, Tyler Rutherford, Michael G Hull, Rebecca A Cerrato, John T Campbell
BACKGROUND: Lateral hindfoot pain in patients with flatfoot deformity is frequently attributed to subfibular impingement. It remains unclear whether this is primarily due to bony or soft-tissue impingement. No studies have used weight-bearing CT scans to evaluate subfibular impingement. METHODS: Patients with posterior tibial tendonitis were retrospectively searched and reviewed. Subjects had documented flatfoot deformity, posterior tibial tenderness, weight-bearing plain radiographs, and a weight-bearing CT scan...
October 8, 2018: Foot & Ankle International
S C Li, Z M Xing, Y Yang, Y Liu, C L Geng, M Wang, X P Yuan
Objective: To investigate the effect of blood eosinophils on clinical effect of endoscopic sinus surgery for chronic rhinosinusitis with nasal polyps (CRSwNP). Methods: From March 2011 to March 2016, 72 cases with CRSwNP were treated by endoscopic sinus surgery in Department of Otorhinolaryngology Head and Neck Surgery, Peking University People's Hospital. The clinical records were retrospectively reviewed, and the cases were divided into eosinophilia elevated and non-elevated group according to blood eosinophils, and nasal polyps were evaluated for histopathology eosinophil count...
September 7, 2018: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
Davide Facchinelli, Enrico Boninsegna, Marco Barillari, Giancarlo Mansueto, Mauro Krampera, Dino Veneri
Primary lymphoma of the sphenoid is an extremely rare pathology, therefore it is difficult to hypothesize and the imaging characteristics are not well-known. Here we report the imaging features in computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography (PET) scan of a 44-year-old patient who presented with severe headache. CT and MRI showed a sphenoid sinus mass that suggested rhinopharyngeal lesion or a chordoma. However, biopsy from the mass histologically proved it to be Diffuse large B-cell lymphoma and PET examinations revealed increased fluorodeoxyglucose uptake around the sphenoid bone and multiple spinal lesions...
October 1, 2018: Tumori
Martin Jakobs, Jessica Jesser, Tobias Albrecht, Antje Wick, Andreas Unterberg, Rezvan Ahmadi
INTRODUCTION: Sphenopalatine ganglion stimulation (SPG-S) is an invasive form of neuromodulation by which a neurostimulator is implanted into the pterygopalatine fossa to treat refractory chronic cluster headache. The implant is MRI conditional, up to 3 T, however there is no clinical data on the shape, size, and location of the artifact produced by the implant. MATERIALS AND METHODS: Records of patients with SPG-S were analyzed for postoperative cranial MRI scans...
September 30, 2018: Neuromodulation: Journal of the International Neuromodulation Society
Hong Chen, Yi Li, Xia Gao, Xiaohui Shen
PURPOSE: To evaluate the diagnostic value of 99m Tc-HYNIC-TOC SPECT/CT in the detection of primary small cell neuroendocrine carcinomas of the nasal cavity and paranasal sinuses. METHODS: From September 2005 to November 2015, 19 patients (mean age 53.9 years, range 37-77; male 6, female 13) with sinonasal small cell neuroendocrine carcinoma (SNEC) underwent whole-body 99m Tc-HYNIC-TOC SPECT/CT scan. RESULTS: All 19 primary lesions were detected by 99m Tc-HYNIC-TOC SPECT/CT...
September 20, 2018: Clinical Imaging
Xiaoyu Gao, Bing Li, Maowen Ba, Weidong Yao, Chunjuan Sun, Xuwen Sun
Fungal sphenoid sinusitis is easily misdiagnosed in clinic, particularly for patients with normal immunological status. Due to the anatomic characteristics of sphenoid sinus, patients presented with various nonspecific symptoms and complications. Headache is the most common presentation, but location of headache is not fixed. We intended to analyze 6 cases of headache secondary to the isolated sphenoid sinus fungus ball (SSFB) which were first diagnosed in the Neurology Department. There was significant female predominance with mean ages of 55 years...
2018: Frontiers in Neurology
Emanuel Bruckmoser, Reinhard Gruber, Otto Steinmassl, Klaus Eder, Franz Watzinger, Michaela Bayerle-Eder, Philip Jesch
PURPOSE: To evaluate the sinus membrane perforation and implant survival rate after crestal minimally invasive sinus floor augmentation using hydraulic pressure and vibrations. MATERIALS AND METHODS: In this retrospective single cohort study, all patients who underwent minimally invasive sinus floor augmentation between 2007 and 2015 using hydraulic pressure and vibrations were included. The sinus membrane is elevated by physiologic saline at 1.5 bar. The fluid is then set into vibration to further separate the sinus membrane from the bony floor...
September 2018: International Journal of Oral & Maxillofacial Implants
Philip G Chen, Ahmed Bassiouni, Christine B Taylor, Alkis J Psaltis, Abdulaziz Alrasheed, Bozena Wrobel, Marc A Tewfik, K Christopher McMains
Background The Frontal Sinus Masterclass (FSMC) is an effective method for teaching frontal sinus anatomy. A third party developed new software using the same 3-dimensional building block concept. The authors sought to determine whether the use of the software for the educational module yielded similar results to the original FSMC, which used wooden blocks. Methods The study was performed at a sinus course for residents. A precourse test assessed the ability to decipher frontal sinus anatomy prior to the course...
September 19, 2018: American Journal of Rhinology & Allergy
Larissa Collier, Chiara Villa
This study presents and discusses the differential diagnosis of a unique case of facial trauma. The adult male skull was excavated in 1948 from Uglemose (Owl Bog) outside of Birket, on the island of Lolland (Denmark). Carbon-14 samples from an adult tibia excavated with the skull dates to the end of the Danish Bronze Age and transition period into the pre-Roman Iron Age. The skull shows a traumatic ante-mortem lesion to the left maxilla, directly below the orbit, that opens into the maxillary sinus. The left margin of the injury is slightly rounded and angled into the lesion while the right margin is pulled out from the lesion and has a much sharper border, suggesting a directional force from left to right...
September 18, 2018: Anthropologischer Anzeiger; Bericht über die Biologisch-anthropologische Literatur
Ricardo Villarreal, Bozena B Wrobel, Luis F Macias-Valle, Greg E Davis, Thomas J Prihoda, Amber U Luong, K Christopher McMains, Erik K Weitzel, William C Yao, Joe Brunworth, David W Clark, Salil Nair, Constanza J Valdés, Ashleigh Halderman, David W Jang, Rahuram Sivasubramaniam, Zhipeng Zhang, Philip G Chen
BACKGROUND: Inconsistencies in the nomenclature of structures of the frontal sinus have impeded the development of a validated "reference standard" classification system that surgeons can reliably agree upon. The International Frontal Sinus Anatomy Classification (IFAC) system was developed as a consensus document, based on expert opinion, attempting to address this issue. The purposes of this study are to: establish the reliability of the IFAC as a tool for classifying cells in the frontal recess among an international group of rhinologists; and improve communication and teaching of frontal endoscopic sinus surgery (ESS)...
September 14, 2018: International Forum of Allergy & Rhinology
Karen Head, Steve Sharp, Lee-Yee Chong, Claire Hopkins, Carl Philpott
BACKGROUND: This review adds to a series of reviews looking at primary medical management options for patients with chronic rhinosinusitis.Chronic rhinosinusitis is common and characterised by inflammation of the lining of the nose and paranasal sinuses leading to nasal blockage, nasal discharge, facial pressure/pain and loss of sense of smell. The condition can occur with or without nasal polyps. Antifungals have been suggested as a treatment for chronic rhinosinusitis. OBJECTIVES: To assess the effects of systemic and topical antifungal agents in patients with chronic rhinosinusitis, including those with allergic fungal rhinosinusitis (AFRS) and, if possible, AFRS exclusively...
September 10, 2018: Cochrane Database of Systematic Reviews
Emrah Sapmaz, Ahmet Kavaklı, Hilal Irmak Sapmaz, Murat Ögetürk
Objective: To investigate the effect of hard palate angulation caused by septal deviation on the volume of the maxillary sinus. Methods: Coronal computed tomographic (CT) scans of 1568 patients aged from 18 to 60 were examined. CT scans of 402 patients were included in the study. On these scans, the maxillary sinus volume, the angle of the nasal septal deviation, and the angulation of the hard palate were calculated using the ImageJ software. Each maxillary sinus volume was statistically compared with each other and with those in the control group...
June 2018: Turkish Archives of Otorhinolaryngology
Lucile Deloire, Idris Diallo, Romain Cadieu, Mathieu Auffret, Zarrin Alavi, Julien Ognard, Douraïed Ben Salem
PURPOSE: To evaluate forensic identification of individuals through visual comparison of sphenoid sinus anatomical configuration using ante- and post-mortem CT-scans. METHOD AND MATERIALS: Ante- and post-mortem head CT-scan of 33 individuals were retrospectively collected. Ten head CT-scans were randomly selected from various neurological contexts and added to the ante-mortem group. Ten other head CT-scans were randomly selected from our post-mortem PACS and added to the post-mortem group...
September 1, 2018: Journal of Neuroradiology. Journal de Neuroradiologie
Jose L Mattos, Zachary M Soler, Luke Rudmik, Peter R Manes, Thomas S Higgins, Jivianne Lee, John Schneider, Michael Setzen, Arjun K Parasher, Timothy L Smith, Janalee K Stokken
BACKGROUND: Quality improvement (QI) in the management of chronic rhinosinusitis (CRS) is garnering increasing attention. Defining frameworks and metrics to assess the quality of key components in CRS management could assist in reducing unwarranted practice variation and increase high-quality care. METHODS: A panel of the American Rhinologic Society (ARS) QI committee reviewed the literature to determine important presurgical components of CRS care that warrant QI...
September 3, 2018: International Forum of Allergy & Rhinology
Chelsea Kathleen Varner, Caillin Wyse Marquardt, Peter Vincent Pickens
BACKGROUND Antiphospholipid syndrome (APS) is an autoimmune disease characterized by antibodies directed against phospholipids on plasma membranes. Through unclear mechanisms, APS confers hypercoagulability. APS may cause recurrent thromboses in the arterial and venous vasculature. We report a case of primary APS resulting in cerebral venous thrombosis and ST-elevation myocardial infarction (STEMI) for which only antiphosphatidylserine (aPS) IgM antibody was positive after extensive investigation. CASE REPORT A 48-year-old male was admitted after a witnessed generalized seizure with subsequent confusion...
August 31, 2018: American Journal of Case Reports
Thomas J Stocker, Simon Deseive, Jonathon Leipsic, Martin Hadamitzky, Marcus Y Chen, Ronen Rubinshtein, Mathias Heckner, Jeroen J Bax, Xiang-Ming Fang, Erik Lerkevang Grove, John Lesser, Pál Maurovich-Horvat, James Otton, Sanghoon Shin, Gianluca Pontone, Hugo Marques, Benjamin Chow, Cesar H Nomura, Ramzi Tabbalat, Axel Schmermund, Joon-Won Kang, Christopher Naoum, Melany Atkins, Eugenio Martuscelli, Steffen Massberg, Jörg Hausleiter
Aims: Advances of cardiac computed tomography angiography (CTA) have been developed for dose reduction, but their efficacy in clinical practice is largely unknown. This study was designed to evaluate radiation dose exposure and utilization of dose-saving strategies for contrast-enhanced cardiac CTA in daily practice. Methods and results: Sixty one hospitals from 32 countries prospectively enrolled 4502 patients undergoing cardiac CTA during one calendar month in 2017...
August 25, 2018: European Heart Journal
Lars-Arne Schaafs, Julian Pfeil, Torsten Köhlitz, Bernd Hamm, Stefan Markus Niehues
To evaluate the performance of two iterative reconstruction algorithms in low-dose paranasal sinus computed tomography (CT). Sinus CT scans were reconstructed using Adaptive Iterative Dose Reduction 3D (AIDR 3D, n = 36 patients) or Sinogram Affirmed Iterative Reconstruction (SAFIRE, n = 32 patients). Reconstructed images were evaluated regarding subjective image quality, depiction of anatomic landmarks and noise (HU). Dose-length product (DLP), calculated effective dose (ED) and CT dose index (CTDIvol) were documented for each scan...
August 25, 2018: Radiation Protection Dosimetry
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